My plan is that if I hear a mob banging on the door, I'll call 911, report that someone is trying to break in, that I'm armed, and if they do break in, I'm going to shoot. Maybe some other cops will arrive in time to stop the nonsense.
No. Your call will be routed to the SWAT at your door and they will immediately level your house with all the bullets in all of their guns and the explosives they also carry.